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He said that at the time his main concerns were weight loss and abdominal pain.

Mr Crocker was diagnosed with cirrhosis - the liver condition brought on by alcohol abuse - and an appointment with a specialist was made, although it did not take place before his death.

"Mr Crocker reduced his alcohol intake," the GP added. "He only had one or two glasses on social occasions."

However after a postmortem examination, Dr Hopkins at Royal Cornwall Hospital concluded that the likely cause of death was "ethanol and mixed drug toxicity" and that Mr Crocker also had other issues including cirrhosis and diabetes.

A very high level of alcohol - 376 micrograms for every 100 millilitres of blood - was found in his body, which is more than four and a half times the drink drive limit.